21886018

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{167}}^1$

素因数の和:247

約数の個数: 64

約数和(自身を含む): 44126208

約数和(自身を除く): 22240190

約数列:

[1, 2, 7, 11, 14, 22, 23, 37, 46, 74, 77, 154, 161, 167, 253, 259, 322, 334, 407, 506, 518, 814, 851, 1169, 1702, 1771, 1837, 2338, 2849, 3542, 3674, 3841, 5698, 5957, 6179, 7682, 9361, 11914, 12358, 12859, 18722, 25718, 26887, 42251, 43253, 53774, 65527, 67969, 84502, 86506, 131054, 135938, 142117, 284234, 295757, 475783, 591514, 951566, 994819, 1563287, 1989638, 3126574, 10943009, 21886018]

約数ペア:

[(1, 21886018), (2, 10943009), (7, 3126574), (11, 1989638), (14, 1563287), (22, 994819), (23, 951566), (37, 591514), (46, 475783), (74, 295757), (77, 284234), (154, 142117), (161, 135938), (167, 131054), (253, 86506), (259, 84502), (322, 67969), (334, 65527), (407, 53774), (506, 43253), (518, 42251), (814, 26887), (851, 25718), (1169, 18722), (1702, 12859), (1771, 12358), (1837, 11914), (2338, 9361), (2849, 7682), (3542, 6179), (3674, 5957), (3841, 5698)]